1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head profile="http://gmpg.org/xfn/11" >
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<title>CStruct:Examples:GlobalMemoryStatus</title>
<style type="text/css">
.CodeRay {
background-color: #232323;
border: 1px solid black;
font-family: 'Courier New', 'Terminal', monospace;
color: #E6E0DB;
padding: 3px 5px;
overflow: auto;
font-size: 12px;
margin: 12px 0;
}
.CodeRay pre {
margin: 0px;
padding: 0px;
}
.CodeRay .an { color:#E7BE69 }
.CodeRay .c { color:#BC9358; font-style: italic; }
.CodeRay .ch { color:#509E4F }
.CodeRay .cl { color:#FFF }
.CodeRay .co { color:#FFF }
.CodeRay .fl { color:#A4C260 }
.CodeRay .fu { color:#FFC56D }
.CodeRay .gv { color:#D0CFFE }
.CodeRay .i { color:#A4C260 }
.CodeRay .il { background:#151515 }
.CodeRay .iv { color:#D0CFFE }
.CodeRay .pp { color:#E7BE69 }
.CodeRay .r { color:#CB7832 }
.CodeRay .rx { color:#A4C260 }
.CodeRay .s { color:#A4C260 }
.CodeRay .sy { color:#6C9CBD }
.CodeRay .ta { color:#E7BE69 }
.CodeRay .pc { color:#6C9CBD }
</style>
</head>
<body>
<div style="margin-left:auto;margin-right:auto;width:800px;">
<div class="CodeRay">
<div class="code"><pre><span class="c"># CStruct Examples</span>
require <span class="s"><span class="dl">'</span><span class="k">windows/memory</span><span class="dl">'</span></span>
require <span class="s"><span class="dl">'</span><span class="k">win32struct</span><span class="dl">'</span></span>
include <span class="co">Windows</span>::<span class="co">Memory</span>
<span class="c"># example:</span>
<span class="c"># typedef struct _MEMORYSTATUS {</span>
<span class="c"># DWORD dwLength;</span>
<span class="c"># DWORD dwMemoryLoad;</span>
<span class="c"># DWORD dwTotalPhys;</span>
<span class="c"># DWORD dwAvailPhys;</span>
<span class="c"># DWORD dwTotalPageFile;</span>
<span class="c"># DWORD dwAvailPageFile;</span>
<span class="c"># DWORD dwTotalVirtual;</span>
<span class="c"># DWORD dwAvailVirtual;</span>
<span class="c"># } MEMORYSTATUS, *LPMEMORYSTATUS;</span>
<span class="r">class</span> <span class="cl">MEMORYSTATUS</span> < <span class="co">Win32Struct</span>
<span class="co">DWORD</span> <span class="sy">:dwLength</span>
<span class="co">DWORD</span> <span class="sy">:dwMemoryLoad</span>
<span class="co">DWORD</span> <span class="sy">:dwTotalPhys</span>
<span class="co">DWORD</span> <span class="sy">:dwAvailPhys</span>
<span class="co">DWORD</span> <span class="sy">:dwTotalPageFile</span>
<span class="co">DWORD</span> <span class="sy">:dwAvailPageFile</span>
<span class="co">DWORD</span> <span class="sy">:dwTotalVirtual</span>
<span class="co">DWORD</span> <span class="sy">:dwAvailVirtual</span>
<span class="r">end</span>
<span class="c"># create a MEMORYSTATUS's instance</span>
stat = <span class="co">MEMORYSTATUS</span>.new {|st| st.dwLength = <span class="co">MEMORYSTATUS</span>.size }
<span class="c"># call API "GlobalMemoryStatus" - See also MSDN</span>
GlobalMemoryStatus(stat.data)
<span class="c">#output</span>
printf <span class="s"><span class="dl">"</span><span class="k">[Physical Memory]</span><span class="ch">\n</span><span class="dl">"</span></span>
printf <span class="s"><span class="dl">"</span><span class="k"> total:%12d bytes</span><span class="ch">\n</span><span class="dl">"</span></span>,stat.dwTotalPhys
printf <span class="s"><span class="dl">"</span><span class="k"> free :%12d bytes</span><span class="ch">\n</span><span class="dl">"</span></span>,stat.dwAvailPhys
printf <span class="s"><span class="dl">"</span><span class="k">[Virtual Memory]</span><span class="ch">\n</span><span class="dl">"</span></span>
printf <span class="s"><span class="dl">"</span><span class="k"> total:%12d bytes</span><span class="ch">\n</span><span class="dl">"</span></span>,stat.dwTotalVirtual
printf <span class="s"><span class="dl">"</span><span class="k"> free :%12d bytes</span><span class="ch">\n</span><span class="dl">"</span></span>,stat.dwAvailVirtual
printf <span class="s"><span class="dl">"</span><span class="k">[Paging File]</span><span class="ch">\n</span><span class="dl">"</span></span>
printf <span class="s"><span class="dl">"</span><span class="k"> total:%12d bytes</span><span class="ch">\n</span><span class="dl">"</span></span>,stat.dwTotalPageFile
printf <span class="s"><span class="dl">"</span><span class="k"> free :%12d bytes</span><span class="ch">\n</span><span class="dl">"</span></span>,stat.dwAvailPageFile
</pre></div>
</div>
</div>
</body>
|
